Chris King GripNut Headset - 1" Black MFPN=TRTT-2B The SPD-compatible clip-in/out experience is

The SPD-compatible clip-in/out experience is quick and precise

5mm Handlebar Diameter 22

Disc IS 6-bolt Axle Type 12mm TA Rim Drilling 28 Spoke Type Stainless

Tool-free reach adjust provides customized hand fitment

it provides accurate heart rate data to Garmin devices

Chris King GripNut Headset - 1" Black MFPN=TRTT-2B The SPD-compatible clip-in/out experience isThe Chris King GripNut Threaded Headset incorporates a threaded collet that firmly clamps the threads for better holding power and includes a ten year warranty. User serviceable stainless steel cartridge bearings with full contact seals GripNut headset incorporates a threaded collet that firmly clamps the threads for better holding power 10 year warranty Requires installation tool adaptor Color Black Lower Stack Height 13. 7 Bearing Type Cartridge